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-rw-r--r--arch/blackfin/kernel/process.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c
index c86a3ed5f48..cd0c090ebc5 100644
--- a/arch/blackfin/kernel/process.c
+++ b/arch/blackfin/kernel/process.c
@@ -493,6 +493,11 @@ int _access_ok(unsigned long addr, unsigned long size)
return 1;
#endif
+#ifndef CONFIG_EXCEPTION_L1_SCRATCH
+ if (in_mem_const(addr, size, (unsigned long)l1_stack_base, l1_stack_len))
+ return 1;
+#endif
+
aret = in_async(addr, size);
if (aret < 2)
return aret;